Married the Heiress of Humphry de Luss about the middle of the 14th Century in 1340, thereby joining the two families and th us becoming the 5th of Colquhoun and the 7th of Luss. She was the daughter an d heiress of Godfridus, 6th Laird of Luss.

As Robert de Colquhoun, he witnessed a grant of Auchmarr to Walter Buchanan in 1373, in the reign of David II. Sir Robert was dead in 1391 when his lands of Meikle Sauchy were in the hands of the King, the heir not having up to that time obtained

infeftment.

Sir Robert de Colquhoun, supposed by Mr Fraser, the family historian, to be fifth in descent from the first Humphry, and son of a Humphry, the fourth of Colquhoun, in the reign of David Bruce, married in or previous to the year 1368 the dau ghter and sole heiress (known in the family tradition as "The Fair Maid of Luss ") of Godfry de Luss, lord of Luss, head or chief of an ancient family of that name, and the sixth in a direct male line from Malduin, dean of Lennox, who, in the beginning of the thirteenth century, received from Alwyn, second Earl of L ennox, a charter of the lands of Luss. The Luss territories lie in the mountain ous but beautiful and picturesque district on the margin of Loch Lommond, Sir R obert was designed "dominus de Colquhoun and de Luss," in a charter dated in 1368; since which time the family have borne the designation of Colquhoun of Colq uhoun and Luss.